I am looking for sample project of React-Native. First of all i got erro which is unable to resolve router flux. Then i added flux dependency and i run npm start. After that i got "Undefined is not an object" in package.json. How can i solve it. Can you please help me?
{
"name": "FirsTrial",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"dependencies": {
"react": "16.3.1",
"react-native": "0.55.3",
"react-native-router-flux": "3.38.0"
},
"devDependencies": {
"babel-jest": "22.4.3",
"babel-preset-react-native": "^2.1.0",
"jest": "22.4.3",
"react-test-renderer": "16.3.1"
},
"jest": {
"preset": "react-native"
}
}
"FirsTrial" is underlined !!!
Related
I Have created the expo project with bare minimum for the project. I am using expo vector icons are specified in the document. So it is working well in the Browser and Android Emulator, this is fine. After that i have published the project to expo account by using command : "expo publish" and it has published successfully.So when i started scanning the resulted QR code into the mobile. it is not displaying the icons. Displaying some encoded string.
Syntax is have used :
import { Ionicons } from '#expo/vector-icons';
<Ionicons name="add" size={24} color="black" />
Package.json
{
"main": "index.js",
"scripts": {
"android": "react-native run-android",
"ios": "react-native run-ios",
"web": "expo start --web",
"start": "react-native start",
"test": "jest"
},
"dependencies": {
"#expo/vector-icons": "^12.0.4",
"#react-native-community/masked-view": "0.1.10",
"#react-navigation/material-bottom-tabs": "^5.3.14",
"#react-navigation/native": "^5.9.3",
"#react-navigation/stack": "^5.14.3",
"expo": "~40.0.0",
"expo-font": "~8.4.0",
"expo-linear-gradient": "~8.4.0",
"expo-splash-screen": "~0.8.0",
"expo-status-bar": "~1.0.3",
"expo-updates": "~0.4.0",
"react": "16.13.1",
"react-dom": "16.13.1",
"react-native": "~0.63.4",
"react-native-gesture-handler": "~1.8.0",
"react-native-paper": "^4.7.2",
"react-native-reanimated": "~1.13.0",
"react-native-safe-area-context": "3.1.9",
"react-native-screens": "~2.15.2",
"react-native-unimodules": "~0.12.0",
"react-native-web": "~0.13.12",
"react-redux": "^7.2.3",
"redux": "^4.0.5",
"redux-thunk": "^2.3.0"
},
"devDependencies": {
"#babel/core": "^7.9.0",
"babel-jest": "~25.2.6",
"babel-plugin-module-resolver": "^4.1.0",
"jest": "~25.2.6",
"react-test-renderer": "~16.13.1"
},
"jest": {
"preset": "react-native"
},
"private": true
}
Please help me out if has any issue in the code.
Thanks in advance.
I found this error message when running react-script test
The react-scripts package provided by Create React App requires a dependency "babel-jest": "^24.9.0"`
So the error message also recommend us to remove package-lock.json and also node_modules I tried but I have the same error message.
And I inspect the package-lock.json and for example jest-config (is a sub dependancies) use higher version than react-script accept.
Please if you have some advices
packages.json
{
"name": "creator-web-app",
"version": "0.1.0",
"private": true,
"main": "public/electron.js",
"homepage": "./",
"dependencies": {
"#craco/craco": "^5.6.4",
"#testing-library/jest-dom": "^4.2.4",
"#testing-library/react": "^9.5.0",
"#testing-library/user-event": "^7.2.1",
"#types/react": "^16.9.34",
"await-to-js": "^2.1.1",
"axios": "^0.19.2",
"classnames": "^2.2.6",
"electron-is-dev": "^1.2.0",
"env-cmd": "^10.1.0",
"enzyme": "^3.11.0",
"history": "^4.10.1",
"i18next": "^19.4.2",
"i18next-browser-languagedetector": "^4.0.2",
"jest": "^25.3.0",
"jwt-decode": "^2.2.0",
"moment": "^2.24.0",
"nano-id": "^1.1.0",
"npm-watch": "^0.6.0",
"react": "^16.13.1",
"react-cookies": "^0.1.1",
"react-dom": "^16.13.1",
"react-i18next": "^11.3.4",
"react-inlinesvg": "^1.2.0",
"react-redux": "^7.2.0",
"react-router-dom": "5.1.2",
"react-scripts": "3.4.1",
"redux": "^4.0.5",
"redux-form": "^8.3.3",
"redux-thunk": "^2.3.0",
"typescript": "^3.7.0"
},
"scripts": {
"electron": "NODE_ENV=production npm run build && NODE_ENV=production electron .",
"start": "NODE_ENV=development react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"pack": "NODE_ENV=production && npm run build && electron-builder --dir",
"dist": "NODE_ENV=production && npm run build electron-builder"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
},
"devDependencies": {
"#types/classnames": "^2.2.10",
"#types/enzyme": "^3.10.5",
"#types/jest": "^25.2.1",
"#types/react-redux": "^7.1.7",
"#types/react-router-dom": "^5.1.4",
"#types/redux-form": "^8.2.3",
"craco-alias": "^2.1.1",
"electron": "^8.2.1",
"electron-builder": "^22.4.1",
"enzyme-adapter-react-16": "^1.15.2",
"node-sass": "^4.13.1",
"react-test-renderer": "^15.6.2",
"ts-jest": "^25.4.0",
"whatwg-fetch": "^3.0.0"
},
"build": {
"appId": "studioapp.id",
"mac": {
"category": "your.app.category.type"
},
"files": [
"**/*"
],
"directories": {
"buildResources": "."
},
"protocols": {
"name": "studioapp-protocol",
"schemes": [
"studioapp"
]
}
},
"jest": {
"collectCoverageFrom": [
"<rootDir>/src/**/*.{ts,tsx}"
],
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|yml)$": "<rootDir>/tests/test-file-mock.js",
"\\.(css|less|scss|sss|styl)$": "<rootDir>/tests/test-mock.js",
"#/(.*)$": "<rootDir>/src/$1"
},
"transform": {
"^.+\\.(tsx|ts)?$": "ts-jest"
}
}
}
Thanks
I faced the same problem with create-react-app. Here is what I did
Go to the path
C:\Users\YOURNAME\node_modules
and then remove those packages which show an error.
More information here: https://github.com/creativetimofficial/argon-dashboard-react/issues/28
Ironically I was working on a similarish problem this morning. Could you provide a screenshot of your package.json and the error message?
Babel-Jest is used to compile javascript code into a format that jest can consume. I suspect that your problem is that you have a dependency that the lock file has subsequently locked in the incorrect version of babel-jest.
I can add some more details from the above response for solve this issue I found the problem.
When we use react-scripts we can't have jest packages or something is already manage by create-react-app
The problem when I have is package.json contain jest at superior version than react-script can accept
When I deleted this line in my package.json already seems to work
One of your dependencies is using a newer version of babel-jest. You can find which ones they are by running npm ls babel-jest in your project root directory.
A simple way to fix the problem then, is to try and link to an older version of those packages, e.g. "#types/jest": "^24.0.0" so that they don't use the newer version of babel-jest.
for mac user remove
/Users/{UserName}/node_modules
trying to build a GitHub portfolio and host it on Namecheap so having this error: An unexpected error occurred: "/home/kudzie/portfolio/package.json: Unexpected token } in JSON at position 575".
{
"name": "portfolio",
"version": "0.1.0",
"private": true,
"dependencies": {
"#testing-library/jest-dom": "^4.2.4",
"#testing-library/react": "^9.3.2",
"#testing-library/user-event": "^7.1.2",
"react": "^16.12.0",
"react-dom": "^16.12.0",
"react-scripts": "3.3.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject",
"predeploy": "yarn run build",
"deploy": "gh-pages -d build"
},
"homepage":{
"http://kgomera.me/."
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}
trying to build a GitHub portfolio and host it on Namecheap so having the error l posted above
On your "homepage" line:
"homepage":{
"http://kgomera.me/."
}
it is expecting a property, but all that's there is a string.
There are a couple ways of fixing this. The first, which is probably the way you're intending, is to change "homepage" from an object to a property:
"homepage":"http://kgomera.me/."
Secondly, you could add a key to make it into a property
"homepage":{
"url":"http://kgomera.me/."
}
Or lastly, you could make it into an array instead of an object by replacing the curly brackets with square brackets
"homepage":[
"http://kgomera.me/."
]
Just for future situations like this, here is a fantastic JSON validator and formatter that tells you exactly what is happening.
I am trying to set up a simple ES6 project to play with mocha, chai and sinon in the Terminal. But whenever I try to npm run test, I keep getting an error:
/Users/UserName/workspace/UnitTesting/mocha-sinon-chai/src/App.spec.js:1
(function (exports, require, module, __filename, __dirname) { import should from "chai";
^^^^^^
SyntaxError: Unexpected token import
Here are my:
1. Package.json:
{
"name": "mocha-sinon-chai",
"version": "1.0.0",
"description": "",
"main": "index.js",
"directories": {
"test": "tests"
},
"dependencies": {
"chai": "^4.1.2",
"chai-as-promised": "^7.1.1",
"sinon": "^4.4.1"
},
"devDependencies": {
"babel-cli": "^6.26.0",
"babel-preset-env": "^1.6.1",
"mocha": "^5.0.1"
},
"scripts": {
"build": "babel src -d lib",
"test": "mocha ./tests/*.spec.js"
},
"author": "",
"license": "ISC"
}
2. .babelrc:
{
"presets": ["env"]
}
3. Root folder structure:
4. App.spec.js:
import should from "chai";
import { findOne } from "../src/App.js";
describe("App.js", function() {
it("should return true if predicate exists in the array", function() {
findOne([1, 2, 3], 3).should().be.true;
});
});
5. index.js is empty
6. App.js simply contains a normal JS function
I have checked many other similar issues here on Stackoverflow and GitHub and none of those solved my problem.
Adding this --require babel-core/register to test script inside package.json solved the problem:
"scripts": {
"build": "babel src -d lib",
"test": "mocha ./tests/*.spec.js --require babel-core/register"
},
Newbie node question. I am not able to get my project running anymore.
{
"name": "MyApp",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node app.js dev2"
},
"author": "",
"license": "ISC",
"dependencies": {
"async-await": "^0.1.32",
"asyncawait": "^1.0.3",
"body-parser": "^1.14.2",
"deasync": "",
"ejs": "^2.4.1",
"express": "^4.13.4",
"gulp": "^3.9.0",
"gulp-concat": "",
"gulp-filelist": "^0.2.0",
"gulp-foreach": "^0.1.0",
"gulp-remove-files": "0.0.3",
"gulp-rename": "",
"gulp-uglify": "",
"gulp-watch": "^4.3.5",
"mongoose": "^4.4.1",
"mongoose-ttl": "0.0.3",
"node-inspector": "^0.12.5",
"promise": "^7.1.1",
"rootpath": "^0.1.2"
},
"devDependencies": {
"browser-sync": "^2.11.1",
"gulp": "^3.9.1"
}
}
1726 error Failed to parse json
1726 error Unexpected token '\u0000' at 1:1
1726 error
1726 error ^
1727 error File: C:\Users\dir\AppData\Roaming\npm-cache\accepts\1.2.13\package\package.json
1728 error Failed to parse package.json data.
1728 error package.json must be actual JSON, not just JavaScript.
error Unexpected token '\u0000' at 1:1
seems that u have null character at first line and 1 character
can u provide package.json on pastebin or similar?